MATTE!

Mattes composited as backgrounds or insets in postproduction




Norman Dawn made several improvements on the matte shot to apply it to motion picture, and was the first director to use rear projection in cinema.
Dawn combined his experience with the glass shot with the techniques of the matte shot. Up until this time, the matte shot was essentially a double-exposure: a section of the camera's field would be blocked with a piece of cardboard to block the exposure, the film would be rewound, and the blocked part would also be shot in live action. Dawn instead used pieces of glass with sections painted black (which was more effective at absorbing light than cardboard), and transferred the film to a second, stationary camera rather than merely rewinding the film. The matte painting was then drawn to exactly match the proportion and perspective to the live action shot. The low cost and high quality of Dawn's matte shot made it the mainstay in special effects cinema throughout the century. [2]

Traditionally, matte paintings were made by artists using paints or pastels on large sheets of glass for integrating with the live-action footage.[1] The first known matte painting shot was made in 1907 by Norman Dawn (ASC), who improvised the crumbling California Missions by painting them on glass for the movie Missions of California.[2] Notable traditional matte-painting shots include Dorothy’s approach to the Emerald City in The Wizard of Oz, Charles Foster Kane’s Xanadu in Citizen Kane, and the seemingly bottomless tractor-beam set of Star Wars Episode IV: A New Hope.



Link:http://en.wikipedia.org/wiki/Matte_%28filmmaking%29